Aneurysm clip

Abstract

An aneurysm clip ( 1 ) is provided with two arms ( 2, 3 ) which are resiliently pivotable towards each other and carry at their free end clamping bars ( 12, 13 ) which are resiliently clamped against each other by the spring force of the arms, with outwardly curved sections of the arms adjoining the clamping bars and jointly forming a receiving space ( 10 ) for a vessel ( 11 ). In order to improve the safety of the application and the possibility of varying the application of the aneurysm clip, the clamping bars protrude from the arms towards both sides and thereby project laterally on both sides over the width of the arms in the outwardly curved sections.

1. Aneurysm clip comprising:
 two arms joined at one end by a spring, said arms being pivotable towards each other about a pivot axis and carrying at respective free ends thereof clamping bars which, in a rest position, are resiliently held against each other by a spring force exerted by said spring; 
 outwardly curved sections of the arms which precede said free ends forming a space for receiving a vessel portion that is not to be clamped; 
 the clamping bars protruding parallel to said pivot axis and laterally away in opposite directions from first and second opposite sides of each of the outwardly curved sections, and being curved to provide one of a convex and a concave shape adapted to clamp an aneurysm; 
 the respective positions of said space and said clamping bars allowing a protuberance of a vessel to be clamped by said bars when said vessel portion is received in said space without being clamped. 
 
     
     
       2. Aneurysm clip as defined in  claim 1 , wherein the clamping bars are curved in their longitudinal direction. 
     
     
       3. Aneurysm clip as defined in  claim 2 , wherein the arms are arranged on a convex side of the clamping bars. 
     
     
       4. Aneurysm clip as defined in  claim 2 , wherein the arms are arranged on a concave side of the clamping bars. 
     
     
       5. Aneurysm clip as defined in  claim 2 , wherein the clamping bars are of symmetrical design in relation to a center plane of the aneurysm clip. 
     
     
       6. Aneurysm clip as defined in  claim 1 , wherein the clamping bars are of symmetrical design in relation to a center plane of the aneurysm clip. 
     
     
       7. Aneurysm clip as defined in  claim 6 , wherein the outwardly curved sections are of substantially circular design. 
     
     
       8. Aneurysm clip as defined in  claim 6 , wherein the outwardly curved sections are of oval design. 
     
     
       9. Aneurysm clip as defined in  claim 6 , wherein the clamping bars have a length which is between twice and ten times the width of the arms in the outwardly curved sections. 
     
     
       10. Aneurysm clip as defined in  claim 6 , wherein in the area of connection to the arms the clamping bars extend at an angle of 90° to the center plane of the aneurysm clip. 
     
     
       11. Aneurysm clip as defined in  claim 1 , wherein in the area of connection to the arms, the clamping bars extend at an incline to a center plane of the aneurysm clip. 
     
     
       12. Aneurysm clip as defined in  claim 11 , wherein the outwardly curved sections are of substantially circular design. 
     
     
       13. Aneurysm clip as defined in  claim 11 , wherein the outwardly curved sections are of oval design. 
     
     
       14. Aneurysm clip as defined in  claim 11 , wherein the clamping bars have a length which is between twice and ten times the width of the arms in the outwardly curved sections. 
     
     
       15. Aneurysm clip as defined in  claim 1 , wherein the outwardly curved sections are of substantially circular design. 
     
     
       16. Aneurysm clip as defined in  claim 1 , wherein the outwardly curved sections are of oval design. 
     
     
       17. Aneurysm clip as defined in  claim 1 , wherein the clamping bars have a length which is between twice and ten times the width of the arms in the outwardly curved sections. 
     
     
       18. Aneurysm clip as defined in  claim 17 , wherein the clamping bars are of symmetrical design in relation to a center plane of the aneurysm clip. 
     
     
       19. Aneurysm clip as defined in  claim 1 , wherein the spring itself forms a bearing shaft for the pivot bearing of the two arms. 
     
     
       20. Aneurysm clip as defined in  claim 1 , wherein in the area of connection to the arms the clamping bars extend at an angle of 90° to a center plane of the aneurysm clip. 
     
     
       21. Aneurysm clip as defined in  claim 20 , wherein the outwardly curved sections are of substantially circular design. 
     
     
       22. Aneurysm clip as defined in  claim 20 , wherein the clamping bars have a length which is between twice and ten times the width of the arms in the outwardly curved sections. 
     
     
       23. Aneurysm clip as defined in  claim 1 , wherein the pivotable arms have an opening in the area in which they adjoin the clamping bars. 
     
     
       24. Aneurysm clip as defined in  claim 1 , wherein the arms widen towards the clamping bars in the area in which they adjoin the clamping bars.